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Topic (Course) 
Technology 
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Pythagorean Theorem

Pythagorean (Trigonometry) 
Java Applet 
Tool 

[3]

This virtual manipulative allows you to walk through a visual proof of the Pythagorean theorem. Before beginning the proof, recall that the pythagorean theorem is: c^2 = a^2 + b^2
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Sum and Difference Formulas (T...

Sum and Difference (Trigonometry) 
Flash 
Support Material 

[1]

This minilesson explains sum and difference formulas for sine and cosine functions.
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Right Triangle Geometry

Pythagorean (Trigonometry) 
Java Applet 
Lesson Plan 

[0]

This eModule presents realworld problems that motivate students to work with right triangle geometry. Interactive worksheets and diagrams with feedback help students learn to solve for unknown angles...
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Trigonometric Identities (Gett...

Identities (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson introduces and walks you through the trigonometric identities.
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Pythagorean Trigonometric Iden...

Pythagorean (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson introduces the concept of Pythagorean trigonometric identities.
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Verifying Trigonometric Identi...

Identities (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains how to use trigonometric identities to simplify trigonometric expressions.
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Using Sum and Difference Formu...

Sum and Difference (Trigonometry) 
Flash 
Support Material 

[0]

This minilesson explains more details of how to find the values of the sine and the cosine functions using the sum and difference formulas.
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Double and Half Angle Formulas...

Double Angle (Trigonometry)+ 
Flash 
Support Material 

[0]

This minilesson explains double angle and half angle formulas, and problems involving angular measures.
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Using Double and Half Angle Fo...

Double Angle (Trigonometry)+ 
Flash 
Support Material 

[0]

This minilesson explains how to use double and half angle formulas in trigonometric applications: e.g. integrating rational functions of sine and cosine will be very hard to integrate without these f...
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I See Graphs

Identities (Trigonometry) 
Computer Algebra System 
Tool 

[0]

This downloadable software designed by a teacher generates problems suitable for courses in Algebra I, Algebra II, Trigonometry, Probability and Statistics, and 3D graphing. It also creates graphs ...
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Formula for sin(A+B)

Sum and Difference (Trigonometry) 
Java Applet 
Tool 

[0]

This applet teaches students geometrically that sin(A+B) = sin(A)cos(B) + cos(A)sin(B). Students can change the values of A and B.
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Six Trig Functions

Reciprocal (Trigonometry) 
Java Applet 
Tool 

[0]

This applet displays the six trig functions (sin, cos, tan, sec, csc, and cot) on the unit circle (degree measure).
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